.tab-wrapper {
  margin: 20px auto;
  width: 722px;
  
}

.tab-menu li {
  position:relative;
  background-color: #fff;
  color:#bcbcbc;
  display: inline-block;
  padding: 20px 40px;
  opacity: 0.8;
  cursor:pointer;
  z-index:0;
}

.tab-menu li:hover {
  color:#464646;
}

.tab-menu li.active {
  color:#464646;
  opacity: 1;
}

.tab-menu li.active:hover {
  color:#464646;
}

.tab-content>div {
  background-color: #fff;
  box-sizing:border-box;
  width: 100%;
    
  min-height:200px;
}

.line {
  position:absolute;
  width: 0;
  height: 7px;
  background-color: aqua;
  top: 0;
  left: 0;
}